Anal stenosis can be categorized into congenital and acquired types based on etiology. Congenital anal stenosis falls under the spectrum of congenital anorectal malformations， being resulted from abnormal embryonic development. Acquired stenosis is not an independent disease but rather a secondary manifestation of various anorectal conditions or injuries， with primary etiologies being primary tumors and local scar formation in the anorectum. Currently， the diagnosis and treatment for anal stenosis both domestically and internationally face challenges of inconsistent standards and significant variability in management strategies. In particular， there is a lack of systematic guidance on the standard application of diagnosis and treatment models with integrated traditional Chinese and Western medicine. Focusing on cicatricial anal stenosis， this guideline was developed by the project team through a comprehensive process including expert interviews， clinical investigation， evidence retrieval and screening， evidence evaluation， formulation of recommendations， guideline drafting， self-assessment and solicitation of feedback， and professional society review. It is based on the best available evidence-based medical data and fully incorporates expert clinical experience. The guideline aims to standardize the clinical diagnosis and treatment process for cicatricial anal stenosis with integrated traditional Chinese and Western medicine， providing clinicians with standardized management strategies and methods. This document covers the etiology， pathology， diagnostic classification， integrated traditional Chinese and Western medicine treatment， and preventive care. By incorporating the characteristics of syndrome differentiation and treatment in traditional Chinese medicine， it establishes personalized， stepped treatment protocols， thereby benefiting more patients with anal stenosis and improving their quality of life and prognosis.